He need to reduce 20 KGS that too fat not muscle he is too young for such heavy weight which can affect growth also. Start controlling now only. Have healthy and active life to reduce weight avoid sitting for too long. Consult dietician. Improve lifestyle. Have activity and food choose properly. Consult on poushtikaposhanapushta

Hello there..., Following these steps will help- Choose a low-carb diet.. Eat when hungry.. Eat real food.. Eat only when hungry.. Measure your progress wisely.. Be persistent Women: Avoid fruit.. Men: Avoid beer.. Avoid artificial sweeteners.. Review any medications.. Stress less, sleep more.. Eat less dairy products and nuts.. Supplement vitamins and minerals.. Use intermittent fasting.. Exercise smart.. Achieve optimal ketosis.. Get your hormones checked.. Add green tea.. Consult Dietitian for diet chart...